1 /*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
4 * Copyright (C) 2009 Google, Inc. All rights reserved.
5 * Copyright (C) 2009 Apple Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #ifndef RenderSVGRoot_h
24 #define RenderSVGRoot_h
25
26 #if ENABLE(SVG)
27 #include "FloatRect.h"
28 #include "RenderBox.h"
29
30 #include "SVGRenderSupport.h"
31
32 namespace WebCore {
33
34 class SVGStyledElement;
35 class AffineTransform;
36
37 class RenderSVGRoot : public RenderBox {
38 public:
39 explicit RenderSVGRoot(SVGStyledElement*);
40 virtual ~RenderSVGRoot();
41
children()42 const RenderObjectChildList* children() const { return &m_children; }
children()43 RenderObjectChildList* children() { return &m_children; }
44
isLayoutSizeChanged()45 bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
setNeedsBoundariesUpdate()46 virtual void setNeedsBoundariesUpdate() { m_needsBoundariesOrTransformUpdate = true; }
setNeedsTransformUpdate()47 virtual void setNeedsTransformUpdate() { m_needsBoundariesOrTransformUpdate = true; }
48
49 private:
virtualChildren()50 virtual RenderObjectChildList* virtualChildren() { return children(); }
virtualChildren()51 virtual const RenderObjectChildList* virtualChildren() const { return children(); }
52
isSVGRoot()53 virtual bool isSVGRoot() const { return true; }
renderName()54 virtual const char* renderName() const { return "RenderSVGRoot"; }
55
56 virtual void computePreferredLogicalWidths();
57 virtual int computeReplacedLogicalWidth(bool includeMaxWidth = true) const;
58 virtual int computeReplacedLogicalHeight() const;
59 virtual void layout();
60 virtual void paint(PaintInfo&, int parentX, int parentY);
61
62 virtual void destroy();
63 virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
64 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
65 virtual void updateFromElement();
66
67 virtual const AffineTransform& localToParentTransform() const;
68
69 bool fillContains(const FloatPoint&) const;
70 bool strokeContains(const FloatPoint&) const;
71
objectBoundingBox()72 virtual FloatRect objectBoundingBox() const { return m_objectBoundingBox; }
strokeBoundingBox()73 virtual FloatRect strokeBoundingBox() const { return m_strokeBoundingBox; }
repaintRectInLocalCoordinates()74 virtual FloatRect repaintRectInLocalCoordinates() const { return m_repaintBoundingBox; }
75
76 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
77
78 virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);
79 virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed);
80
81 virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&) const;
82
83 void calcViewport();
84
85 bool selfWillPaint();
86 void updateCachedBoundaries();
87
88 IntSize parentOriginToBorderBox() const;
89 IntSize borderOriginToContentBox() const;
90 AffineTransform localToRepaintContainerTransform(const IntPoint& parentOriginInContainer) const;
91 AffineTransform localToBorderBoxTransform() const;
92
93 RenderObjectChildList m_children;
94 FloatSize m_viewportSize;
95 FloatRect m_objectBoundingBox;
96 FloatRect m_strokeBoundingBox;
97 FloatRect m_repaintBoundingBox;
98 mutable AffineTransform m_localToParentTransform;
99 bool m_isLayoutSizeChanged : 1;
100 bool m_needsBoundariesOrTransformUpdate : 1;
101 };
102
toRenderSVGRoot(RenderObject * object)103 inline RenderSVGRoot* toRenderSVGRoot(RenderObject* object)
104 {
105 ASSERT(!object || object->isSVGRoot());
106 return static_cast<RenderSVGRoot*>(object);
107 }
108
toRenderSVGRoot(const RenderObject * object)109 inline const RenderSVGRoot* toRenderSVGRoot(const RenderObject* object)
110 {
111 ASSERT(!object || object->isSVGRoot());
112 return static_cast<const RenderSVGRoot*>(object);
113 }
114
115 // This will catch anyone doing an unnecessary cast.
116 void toRenderSVGRoot(const RenderSVGRoot*);
117
118 } // namespace WebCore
119
120 #endif // ENABLE(SVG)
121 #endif // RenderSVGRoot_h
122